81637959

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 120332800

約数和(自身を除く): 38694841

約数列:

[1, 3, 13, 39, 67, 157, 199, 201, 471, 597, 871, 2041, 2587, 2613, 6123, 7761, 10519, 13333, 31243, 31557, 39999, 93729, 136747, 173329, 406159, 410241, 519987, 1218477, 2093281, 6279843, 27212653, 81637959]

約数ペア:

[(1, 81637959), (3, 27212653), (13, 6279843), (39, 2093281), (67, 1218477), (157, 519987), (199, 410241), (201, 406159), (471, 173329), (597, 136747), (871, 93729), (2041, 39999), (2587, 31557), (2613, 31243), (6123, 13333), (7761, 10519)]